Myoelectric Hand Prosthesis with Novel Adaptive Grasping and Self-locking
- Myoelectric Hand Prosthesis with Novel Adaptive Grasping and Self-locking
- 추준욱; 정동현; 윤인찬; 최귀원; 이연정
- Hand prosthesis; Underactuation; Adaptive grasping; Self-locking; EMG pattern recognition
- Issue Date
- International Journal of Precision Engineering and Manufacturing
- VOL 12, NO 6, 1095-1103
- This paper presents a novel hand prosthesis controlled by electromyography (EMG) signals. Using an underactuated
approach, the hand allows four fingers to flex independently with one actuator, plus the fingers and phalanges provide
adaptation with respect to the shape of an object. An innovative self-lock is also embedded in the metacarpophalangeal joint
to prevent back-driving when external forces act on the fingers. The thumb is designed to perform flexion/extension and
abduction/adduction with one actuator, while the wrist is driven in a differential manner using two actuators. As a result,
the hand has eighteen degrees of freedom with only four actuators. Furthermore, it is controlled in real-time by the
previously proposed EMG pattern recognition method.13 Ten kinds of hand motions are classified from four channel EMG
signals with a high accuracy and corresponding motion commands are generated for hand control. Experimental results
demonstrate the effectiveness of the hand design and validity of the EMG-based hand control.
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- KIST Publication > Article
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